Reciprocating chair



(No M5551.) v v M. KEATING.

R-BGIPROGATING umm.

No. 354,554. Patented D55. 21, 1885.

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VOOOOQAVOO UNITED STATES PATENT OFFICE.

MICHAEL KEATIN G, OF BOSTON, MASSACHUSETTS.

RECIPROCATING CHAIR.

` SPECIFICATION forming part of Letters Patent No. 354,554, dated December 21, 1886.

Application filed August 16, 1886. SerialNc. 210,995. (No model.)

Boston, in the county of Suffolk, of the Commonwealth of Massachusetts, have invented a new and useful Improvement in Reciprocating Chairs; and I do hereby declare the same to be described in the following specification and represented in the accompanying drawings, of which- Figure 1 is a side view, Fig. 2 a front view, and Fig. 3 a rear elevation, of a chair containing my invention, the nature of which is defined in the claims hereinafter presented. Fig. 4 is a side view, andFig. 5 an endview, of one of the leg and pivot supporters with its cups and pivots. Fig. 6 is a transverse section of such supporter, the plane of section being through one of the pivots and its sustaining-box. Fig. 7 is a top view, and Fig. 8 a side view, of such box. Fig. 9 is a top View, and Fig. 10 a bottom view, of the cap or cover of such box. Fig. ll is a top view, and Fig. l2 an inner side elevation, of the front bar, e, with its foot-rest guides, pivots, and leg-sustaining cups, as hereinafter described. Figs. l, 2, and 3 of the drawings exhibit the chair-frame without its upholster- Ing.

The chair-body (shown at A) has its seat. frame a, arms b b, and back c constructed in the usual manner. This body is connected to a base, B, by two pairs of crossed legs, C, arranged as represented. The body is placed between the two pairs of legs, those of each pair crossing each other at or near their middles, in manner as represented. Each of such legs is a curved bar, usually of wood, which, near its upper end, is pivoted to one of the arms, such leg at its foot being inserted in a metallic cup or socket, d. There are four of such cups to the chair, two being at the front and two at the rear of it, the pair at the front as well as that at the rear being connected by a bar, e, extending from one to the other of such pairs. From such bar there is extended downward two cylindrically-headed pivots, f f. (See Figs. 4 and 5.) The said bar, the cups, and headed pivots are integral or cast in one piece. Each pivot extends into a metallio box, g, inserted within the base B, and provided with a metallic cap or cover, h, that is furcated to receive between its prongs the shank of the pivot, such prong extending over the cylindrical head of the pivot and keeping it within the box. Screws inserted through 'the cap and anges of the box and screwed into the bars serve to coniine the cap to the box and the latter to the' base, such base being a suitable wooden frame, to rest directly on a iioor, and to be provided with casters for sustaining it thereon.

The box, when the chair is in use, may, if necessary, be supplied with a lubricant, to prevent noise and wear of the pivot and box.

The front bar, e, has projecting rearwardly from it two parallel guides, h h', for supporting between them a foot-rest, i, which slides between them and upon the bar. As the bar rocks or turns while the body of the chair is being reeiprocated, the foot-rest will vibrate with such body to the ease and comfort of a sitter.

I do not claim a chair having its body connected with its base by two pairs of crossed arms arranged as represented; but

I claiml. The combination, with the chair-body, the base, and the two pairs of crossed arms pivoted to the body, of the two metallic bars e, the leg-receiving cups, and the headed pivots extending from such bars, and the boxes and their furcated caps applied to the base, all being substantially as set forth.

2. The combination,with the chair-body A, base B, and the two pairs of crossed arms C, arranged and adapted as set forth, of the metallic bars e, their leg-receiving cups d, and headed pivots f, the boxes g, and their furcated caps h, and the foot-rest 'i and its supportingguides h', of the front bar, e, such bar, its cups, headed pivots, and footrests, supports, or guides being, as hereinbefore described, cast or founded inv one piece, and all being substan-` tially as represented.

MICHAEL KEATING. Witnesses:

R. H. EDDY, R. B. TOREEY. 

